Testosterone

New research provides evidence that measuring testosterone is not a reliable way to assess sexual difficulties in midlife women. Scientists discovered that while hormones subtly influence physical arousal and orgasm, they share no actual link with sexual desire.

A new survey suggests that transgender youth taking gender-affirming testosterone experience lower rates of pelvic pain than those not taking hormones, challenging previous assumptions about the side effects of transitional care.

For decades, testosterone has been blamed for reckless behavior and risky financial gambles. However, a massive new meta-analysis of over 17,000 participants reveals that the link between the "macho" hormone and risk-taking is essentially zero.

New research reveals that adolescent boys hospitalized with major depression have much higher testosterone levels if they experience suicidal thoughts. The findings point toward potential biological markers that could help doctors identify young men at risk of self-harm.

A new genetic study suggests that the biological roots of depression and testosterone regulation are intertwined. Researchers found that specific genomic variances influence both hormone levels and the risk of developing major depressive disorder.

A study of Indigenous Shuar males shows that typical hormone patterns differ across environments. These findings suggest that Western medical benchmarks for male health may not reflect the biological reality for many people globally.

Viral “T maxxing” videos urge young men to boost testosterone. Here is why taking hormones without a medical need carries serious health risks.

A new experiment reveals that male hormone levels influence the decision to punish social injustice. The findings suggest that testosterone helps regulate behavior based on the physical attractiveness of the victim.

Parenting children is linked to lower testosterone in men. New research shows these hormonal shifts continue past the toddler years but remain within a healthy range.

A study in Evolution and Human Behavior reports that men with higher testosterone levels have body odor perceived as more dominant, providing evidence that humans respond to chemical signals regarding social rank.

New research finds that the hormone testosterone alters the mental calculations men use to learn from negative outcomes, enhancing self-protection with indirect consequences for their decisions involving others.

In the largest study of its kind, scientists found testosterone does not influence men's economic behavior. A dose of the hormone failed to change how men approached choices involving risk, fairness, and competition.

A new study suggests testosterone can influence how men respond in social conflicts. When given testosterone gel, participants were more likely to mimic cooperation or defection—and to react emotionally—during a variant of the classic Prisoner’s Dilemma game.

A new study suggests that fairness decisions in adolescence are shaped by the interaction between testosterone and cortisol. The findings reveal that older teens, especially boys, tend to favor friends over strangers in strategic contexts when hormone levels align.

A study of dementia patients with behavioral symptoms suggests testosterone can have opposite effects on the brain. Higher levels of the hormone were linked to declining cognitive performance but also to improvements in symptoms such as depression and nighttime disturbances.